[Test-Equipment] OT: microscope cameras

[Ron Youvan]

> I need to observe a process that takes place inside a flask. It is very 
> small, so a regular camera's lens isn't powerful enough, and the 
> distance from end of lens to the process is 1.5-2 inches.

> If anyone has experience or suggestions of a good way to capture still 
> and video images I'd be grateful.

   Closeup lens/s placed in front of almost any camera lens
give your camera "macro" ability.  Usually sold in 3 lens
sets, looking like clear filters each with progressively
more bulge out on one side.  +1, +1.5 & +2 diopters.
They don't have to screw onto your lens (the idea) just
tape a bigger one (or screw several together) over your lens.
A spacer can be cut from toilet or paper towel tube.
-- 
    Ron  KA4INM - Why can't men train their wives to put the
                  toilet seat back up when they are finished?